diff --git a/src/main/java/com/sheepit/client/Job.java b/src/main/java/com/sheepit/client/Job.java
index 5704fb1..d1d6a8e 100644
--- a/src/main/java/com/sheepit/client/Job.java
+++ b/src/main/java/com/sheepit/client/Job.java
@@ -55,6 +55,7 @@ import java.util.regex.Pattern;
 @Data public class Job {
 	public static final String UPDATE_METHOD_BY_REMAINING_TIME = "remainingtime";
 	public static final String UPDATE_METHOD_BY_TILE = "by_tile";
+	public static final String POST_LOAD_NOTIFICATION = "POST_LOAD_SCRIPT_loaded";
 	
 	public static final int SHOW_BASE_ICON = -1;
 	
@@ -234,7 +235,7 @@ import java.util.regex.Pattern;
 					command.add("-P");
 					
 					try {
-						disableViewportScript = File.createTempFile("optimize_viewport_script_", ".py", configuration.getWorkingDirectory());
+						disableViewportScript = File.createTempFile("pre_load_script_", ".py", configuration.getWorkingDirectory());
 						File file = new File(disableViewportScript.getAbsolutePath());
 						FileWriter fwriter;
 						fwriter = new FileWriter(file);
@@ -242,17 +243,21 @@ import java.util.regex.Pattern;
 						PrintWriter out = new PrintWriter(fwriter);
 						out.write("import bpy");
 						out.write("\n");
+						out.write("import sys");
+						out.write("\n");
 						out.write("from bpy.app.handlers import persistent");
 						out.write("\n");
 						out.write("@persistent");
 						out.write("\n");
-						out.write("def hide_stuff(dummy):");
+						out.write("def hide_stuff(hide_dummy):");
 						out.write("\n");
-						out.write("#Hide collections in the viewport");
+						out.write("	print('PRE_LOAD_SCRIPT_hide_viewport')");
+						out.write("\n");
+						out.write("	#Hide collections in the viewport");
 						out.write("\n");
 						out.write("	for col in bpy.data.collections:");
 						out.write("\n");
-						out.write("\n		col.hide_viewport = True");
+						out.write("		col.hide_viewport = True");
 						out.write("\n");
 						out.write("	for obj in bpy.data.objects:");
 						out.write("\n");
@@ -266,6 +271,8 @@ import java.util.regex.Pattern;
 						out.write("\n");
 						out.write("			mod.show_viewport = False");
 						out.write("\n");
+						out.write("	sys.stdout.flush()");
+						out.write("\n");
 						out.write("bpy.app.handlers.version_update.append(hide_stuff)");
 						out.write("\n");
 						out.close();
@@ -286,7 +293,7 @@ import java.util.regex.Pattern;
 					command.add("-P");
 					
 					try {
-						script_file = File.createTempFile("script_", ".py", configuration.getWorkingDirectory());
+						script_file = File.createTempFile("post_load_script_", ".py", configuration.getWorkingDirectory());
 						File file = new File(script_file.getAbsolutePath());
 						FileWriter txt;
 						txt = new FileWriter(file);
@@ -294,6 +301,12 @@ import java.util.regex.Pattern;
 						PrintWriter out = new PrintWriter(txt);
 						out.write(getScript());
 						out.write("\n");
+						out.write("import sys");
+						out.write("\n");
+						out.write("print('" + POST_LOAD_NOTIFICATION + "')");
+						out.write("\n");
+						out.write("sys.stdout.flush()");
+						out.write("\n");
 						out.write(core_script); // GPU part
 						out.write("\n"); // GPU part
 						out.close();
@@ -374,7 +387,7 @@ import java.util.regex.Pattern;
 				int progress = -1;
 				
 				Pattern progressPattern = Pattern.compile(" (Rendered|Path Tracing Tile|Rendering|Sample) (\\d+)\\s?\\/\\s?(\\d+)( Tiles| samples|,)*");
-				Pattern beginScenePrepPattern = Pattern.compile("Read blend:");
+				Pattern beginScenePrepPattern = Pattern.compile(POST_LOAD_NOTIFICATION);
 				Pattern beginPostProcessingPattern = Pattern.compile("^Fra:\\d* \\w*(.)* \\| (Compositing|Denoising)");
 				Instant timeStamp = null;
 				Duration phaseDuration;	//We divide the job into 3 phases: preparation, rendering, compositing